Aconite is used to treat joint pain, fever, and inflammation. Aconite can have serious effects on your nervous system and heart if taken improperly.
Yohimbe boosts sexual and athletic performance and aids weight loss. Yohimbine comes from African tree bark.
Kava has been used in teas for centuries. It's used to calm anxiety, insomnia, and stress.
Comfrey has been used for over 2,000 years to treat wounds and sore muscles. When applied to the skin, it reduces pain and speeds healing, according to research.
Natural doesn't equal safe. Before taking a supplement, consult your doctor or pharmacist.